Wrench.



L. MICBUSZ. WRENCH. APPLICATION FILED 0GT.11, 1912v 1,048,994. PatentedDec. 31, 1912.

l6 g 66 g? 7' j A "i fy i4 l 25 4? 2 7 5 WI)? 1171/ M H al (fix 1WITNESSES y kffi k F IINVENTOR /0 anal/11am, L Mwwsj, gpwmwz 6, 9 M

UNTE SATES PATEN FFTC.

LUDWIK MICEUSZ, OF HOLDEN, WEST VIRGINIA.

WRENCH.

1 048 994, Specification of Letters Eatent. Patented Deg 31 1e12,

Application filed October 11,1912. Serial No. 725,198.

To all whom it may concern:

Be it known that I, Luowrn Mionusz, a subject of the Emperor ofAustria-Hungary, residing at Holden, in the county of Logan and State of\Vest Virginia, have invented certain new and useful Improvements inrenches, of which the following is a specification.

This invention relates to wrenches, and the objects of my invention areto provide a wrench of that type commonly styled a monkey-wrench, withsimple and effective means for rapidly moving the adjustable jaw of awrench, and to provide the wrench with a novel locking mechanism forholding the movable jaw in adjusted position.

Further objects of my invention are to provide a strong and durablewrench of the above type, and to accomplish the above results by amechanical construction that is inexpensive to manufacture, andefficient as a gripping device for rotating nuts.

With the above and other objects in View the invention resides in thenovel construction, combination and arrangement of parts to behereinafter specifically described and then claimed.

Reference will now be had to the drawing, wherein Figure 1 is a sideelevation of a wrench in accordance with this invention, Fig. 2 is afront elevation of the same, Fig. 3 is a longitudinal sectional view ofthe wrench, and Fig. 4 is a horizontal sectional view taken on linelV-IV of Fig. 3.

A wrench in accordance with this invention comprises a handle 1 havingthe inner end thereof provided with a longitudinal recess or bore 2 thatis rectangular in cross section. Slidably mounted in the recess or bore2 is a shank 3 having the outer end thereof provided with a jaw apresenting a flat gripping surface 5 at the front side of the shank. Thefront side of the shank is provided with transverse ratchet teeth 6 andthe inner end of the shank is provided with a screw 7 that extendsthrough a longitudinal slot 8 formed in the side of the handle. Theouter end of the screw 7 has a flat head or finger piece 9 that ridesagainst the side handle having a longitudinal slot formed of the handle1, and it is through the metherein in communication with the bore ofdium of this finger piece that the shank 3 said handle, a screw carriedby the inner can be rapidly shifted, in either direction in end of saidshank and extending through the handle 1. i said slot and having afinger piece to facili- The front side of the handle 1 is provided tatemoving said shank, a lever pivotally with sets of apertured lugs 10 and11, also with a jaw 12 that is located at the outer end of the handle,said jaw presenting a flat gripping surface 18 that confronts thegripping surface 5 of the jaw 4; and cooperates therewith in grippingthe facets of a nut.

Pivotally mounted between the apertured lugs 10 by a transverse pin 14is a lever 15, said lever having the inner end thereof enlarged toprovide a hand grip 16. This hand grip has the inner face thereofrecessed, at 17 to receive the end of a compression spring 18 that islocated in a recess 19 provided therefor in the front side of thehandle 1. The outer end of the lever 15 is bifurcated, as at 20 andpivotally mounted in the bifurcation of said lever by a pin 21 is thereduced inner end 22 of a locking arm 28. This arm is pivotally mountedby a transverse pin 24 between the apertured lugs 11 and the outer endof said arm has a tooth 25 to enter an opening 26 provided therefor inthe front side of the handle 1 and engage the ratchet teeth 6 of theshank 3.

There is sufficient play between the connected ends of the lever 15 andthe arm 23 to permit of said arm being shifted by pressing upon the handpiece 16 of the lever. The arm 23 is held by the lever 15, through themedium of the spring 18, whereby the tooth 25 will remain normally outof the opening 26, consequently the shank 3 can be freely moved withinthe handle 1, but is limited in its movement by the screw 7 engaging theends of the slot 8. After the jaws 4 and 12 have been placed inengagement with the facets of a nut, the hand piece 16 of the lever 15can be gripped with the handle 1 and the tooth 25 shifted through theopening 26 to engage the ratchet teeth 6 and hold the shank while thewrench is being used for rotating the nut.

What I claim is A wrench comprising a handle having the outer endthereof provided with a longitudinal bore, a toothed shank slidablymounted in the bore of said handle, a jaw carried by the outer end ofsaid shank, said mounted upon the front side of said handle, adapted toextend through the front side 10 a compression spring located in thefront side of said handle and engaging the inner side of said lever atthe inner end thereof, a locking arm pivotally mounted upon the frontside of said. handle and having the inner end thereof loosely connectedto the outer end of said lever, and a tooth carried by the outer end ofsaid locking arm and of said handle to engage said toothed shank.

In testimony whereof I afiiX my signature in presence of two Witnesses.

LUDWIK MICEUSZ.

Witnesses FoMAzs MIonUsz, FRENK SLoWIK.

